Bernard moebius and gustav nebel



Enron.

Aii-EN-r I BERNARD M'OEBIUS AND GUSTAV NEBEL, OF NEW YORK, N. Y.; SAID NEBEL ASSIGNOR TO SAID MOEBIUS.

SPECIFICATION forming part of Letters Patent No. 592,097, dated October 19, 1897. Application filed July 6,1897. Serial No. 643,504. (NomodeL) To all whom it may concern:

Be it known that we, BERNARD MonBIUs and GUSTAV NEBEL, citizens of the United States of America, and residents of New York, in the county and State of New York, have invented certain new and useful Improvements inElectrolytic Apparatus, of which the following is a specification.

Our invention relates to improvements in apparatus for carrying out the process of electrolytic separation of silver described and claimed in United States Letters Patent No. 532,209, granted to Bernard Moebius January 8, 1895, for Process and apparatus for separation of metals. 7? In carrying out this process, it has been found that the silver deposited upon the silver cathode-belt will to a small extent firmly adhere to the belt, necessitating scraping, whereby the belt is injured and its life shortened. We'have remedied this defect by taking the cathode-belt out of the bath, causing it to perform at the same time the function of a conveyer to take the deposited silver out of'the bath, and by providing mechanical means, for continuously oiling the surfaceof the belt upon which the silver is to be deposited, which oiling efiiciently prevents adhesion of the silver to the belt.

The nature of our invention will best be understood when described in connection with the accompanying. drawings, in which- Figure 1 is an elevation, partly in section, embodying our invention, but otherwise constructed and operated substantially as shown and described in said United States Letters Patent No. 532,209. Fig. 2 is a modification of the apparatus.

Referring now to Fig.1, the letter A designates the electrolytic tank, made by preference of a solid block of Wood dug out and suitably lined. p I

B B are rolls adj ustably mounted in brackets placed on the tank; C, an endless silver cathode-belt passing over-the rolls B B.

b b are the shaftsof the rolls B B, mounted in brackets d d and adjusted by screw bolts g g, so as to impart to the belt the proper tension. 1

D D are rolls to keep the part C of the belt immersed in the bath, the roll D being formed with teeth, as shown, so as not too much to' press down the silver precipitated thereon. fThe roll D may have a plain cylindrical surace.

Slow motion in the direction of the arrows is imparted to the belt 0 O by any suitable means, such as the sprocket-Wheels W and chain m, operated by a belt-pulley mounted on the shaft 3 of the small sprocket-wheel w. p T is a circular brush held against the belt while passing over the roll B and by a weighted arm 19 19', mounted loosely on the shaft .9, the brush being actuated from the shaft 8 by suitable gear, so as to brush the silver from the belt into the receptacle R.

U is an oil-tank, within which are mounted two rolls to and 0, both of them a little longer than the width of the belt. As shown, the oiltank is suspended from the bracket d in such a manner that both rollsjw and r are continuously pressed against the belt. The roll a is rotated by contact with the lower part 0 of the silver-belt and oils the surface of the same, upon Whichthe silver is afterward deposited when in the position 0. The roll 4 is normally held by a pawl t and serves to remove or scrape off any surplus of oil. By raising the pawl 15, the roll r may be revolved, so as to remove any matter that may have been accumulated thereon. The roll r is, by preference, made'of material such as lampwick properly secured to the shaft in the usual manner. Any other suitable oiling apparatus may be used.

The letterE designatesone of the anodecells,'the anode being connected to the conductor K, while thebelt is connected .to the conductor L by a brush F. r

Fig. 2 shows a modification of the apparatus in whichfthe lower part 0' of the belt is returned within the bath.

What we claim as new is- 1. In an electrolytic apparatus of the character specified, the combination of a vat for containing thejelectrolyte 3 an endless silverbelt; means substantially as described for slowly passing the belt through the vat, out of the vat, and back into the same; and mechanical means for oiling the surface of the to supply oil to the belt; and a roll or scraper for removing the surplus-oil, substantially as described.

In testimony that We claim the foregoing as our invention We have signed our names, in

presence of two witnesses, this 29th day of June, 1897.

BERNARD MOEBIUS. GUSTAV NEBEL. \Vitnesses:

EUGENIE A. PERSIDES, GEORGE W. A. EISENBRAUN. 

